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tema 3. criptografía simétrica: cifrado en bloque - CryptULL

tema 3. criptografía simétrica: cifrado en bloque - CryptULL

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. #<br />

2<br />

' 5 6 5 5 6<br />

7 5 G < G < G < G ,<br />

F ) 5) 7<br />

5 ,<br />

H ) )<br />

I G ⊗ F $ 7 E #<br />

I G E F $ 7 #<br />

I G E F $ 7 #<br />

I G ⊗ F $ 7 E #<br />

I ⊕<br />

7 I ⊕<br />

I ⊗ F $ 7 E #<br />

I 7 ⊕<br />

. I ⊗ F 7 $ 7 E #<br />

I E . $ 7 #<br />

I 7 ⊕<br />

I ⊕ .<br />

I ⊕<br />

I ⊕<br />

0 ) $5 5 6 ) 8<br />

) : ,<br />

0 * - $ )<br />

⊗ F . $ 7 E #<br />

E F $ 7 #<br />

E F $ 7 #<br />

⊗ F $ 7 E #<br />

Análisis de riesgos 18<br />

7

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